/*
 * Copyright 2023 AntGroup CO., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */

package com.antgroup.geaflow.dsl.udf.table.string;

import com.antgroup.geaflow.dsl.common.function.Description;
import com.antgroup.geaflow.dsl.common.function.UDF;
import java.nio.charset.StandardCharsets;
import org.apache.commons.codec.binary.Base64;

@Description(name = "base64_decode", description = "Decode the string by Base64.")
public class Base64Decode extends UDF {

    public String eval(String s) {
        return new String(
            Base64.decodeBase64(s.getBytes(StandardCharsets.UTF_8)), StandardCharsets.UTF_8);
    }

}
